Invest In Apartment Buildings In Madison County, IL

What Drives Rental Demand In Madison County

Rental demand in Madison County comes from 28,418 renter households, which is 25.8% of occupied housing (ACS 2020–2024). The number of renter households fell 7.8% over five years, while population was about flat. That can happen when renters buy homes or rentals are sold to owner-occupants, and it's something we check before assuming rents will keep rising.

The typical Madison County household earns $75,793 a year, 24.8% more than in the 2015–2019 survey. The number of employed residents rose 0.8% over the same period, and unemployment stood at 4.6%. Rent and income have moved at a similar pace (24.3% and 24.8%), so affordability hasn't shifted much.

Most households in Madison County own their homes, so the renter pool is smaller. Good apartment buildings can still lease well here, but there are fewer of them to buy and fewer recent sales to price against.

The Supply Picture In Madison County

Median gross rent in Madison County, IL is $1,024 a month, up 24.3% from $824 in the 2015–2019 survey (U.S. Census ACS 2020–2024). That's solid growth, broadly in line with many U.S. markets over the same years.

At 4.1%, Madison County's rental vacancy rate sits in a normal range. 46.6% of renters spend 30% or more of their income on housing. That is close to the national picture, where roughly half of renters do, so rent increases need to track local wage growth.

About 7.9% of homes in Madison County are in buildings with 5 or more units, roughly 9,369 homes. That count was about flat over five years, so new apartment supply has been limited. The median home was built in 1971, so many apartment buildings date from the 1970s and 1980s. That vintage is a common target for value-add renovation. For comparison, HUD's fiscal year 2027 Fair Market Rent for a two-bedroom unit in the St. Louis, MO-IL HUD Metro FMR Area is $1,349 a month.

Madison County By The Numbers

Among the 11 Illinois counties we track, Madison County ranks 10th for median gross rent, 6th for renter share and 6th for five-year rent growth. Its rents sit near the bottom of the group, which keeps it affordable for tenants but also caps what renovations can earn. Compared with the 2015–2019 survey, Madison County now has about 538 fewer residents, 2,404 fewer renter households and 9 fewer homes in buildings with 5 or more units. With fewer renter households than before, a building has to win tenants from competitors rather than from new demand.

Cities In Madison County At A Glance

We follow 2 cities in Madison County. The largest is Granite City, with a median gross rent of $834 a month.

Madison County Compared With Illinois

Madison County's median gross rent of $1,024 is below the Illinois median of $1,274.

Rent Versus Income In Madison County

At $1,024 a month, the median Madison County rent adds up to $12,288 a year, or roughly 16.2% of what the median household earns. Under the common 30% guideline, a household needs about $41,000 a year to cover that rent comfortably. That's a lighter load than the Illinois average of 18.3%. Renters usually earn less than the all-household median, so the real burden for tenants is higher than this simple ratio shows.

In dollars, Madison County rent climbed $200 a month over five years and household income climbed $15,061 a year. The two have moved together, so affordability today looks much like it did five years ago. HUD's FY2027 Fair Market Rent for a two-bedroom unit, $1,349, is 31.7% above the median gross rent for all unit sizes. That gap matters for buildings that accept Housing Choice Vouchers, since local housing authorities base voucher payment standards on it.

Madison County Rental Market In Numbers

If you only read one part of this page, read this list. Every figure is from the Census Bureau's ACS 5-year estimates.

• Madison County, IL has 264,238 residents, about flat from the 2015–2019 survey (U.S. Census ACS 2020–2024).
• Median household income in Madison County, IL is $75,793, up 24.8% over five years (U.S. Census ACS 2020–2024).
• Median gross rent in Madison County, IL is $1,024 a month, up 24.3% over five years (U.S. Census ACS 2020–2024).
• 25.8% of households in Madison County, IL rent, about 28,418 renter households (U.S. Census ACS 2020–2024).
• 7.9% of homes in Madison County, IL are in buildings with 5 or more units (U.S. Census ACS 2020–2024).
• The rental vacancy rate in Madison County, IL is 4.1%, and 46.6% of renters spend 30% or more of income on rent (U.S. Census ACS 2020–2024).
• The median home in Madison County, IL was built in 1971 (U.S. Census ACS 2020–2024).

What We Look For In Madison County

Skyline buys 5+ unit apartment buildings in Madison County that either run well today or can run better with new management or renovation. We start with rents, occupancy and the condition of the building, and we price on what the property earns now.

Property taxes are a big line item for any Illinois apartment building. We underwrite the tax bill after purchase, not the seller's current bill, since a sale often resets the assessment. Illinois has no statewide rent control law, though local rules on notices, fees and deposits still apply. Insurance quotes in Illinois reflect winter storm and frozen-pipe claims, so we get a quote before we make an offer.

We keep assumptions conservative: modest rent growth, real repair budgets and loan terms that leave room for a soft year.

Due Diligence For Apartment Syndications In Madison County

Whoever the sponsor is, these are the questions we would want answered about any apartment syndication in Madison County, based on the local numbers above.

• What vacancy does the plan assume? Rental vacancy in Madison County is 4.1%. A plan that assumes much lower vacancy than the market should explain why.
• What rent growth is underwritten? Rents here rose 24.3% over five years. Ask whether the plan assumes that pace continues, and what happens to the deal if rents stay flat.
• How was the property tax bill estimated? A sale often triggers a reassessment, so the bill after purchase can be well above what the seller pays today.
• What capital work is budgeted? The median home in Madison County was built in 1971, so roofs, plumbing and electrical systems deserve their own line items.
• How will the building hold occupancy? Renter households in Madison County fell 7.8%, so the plan should show how it keeps units full.
• How and when does capital come back? Ask what the plan is for a refinance or sale, and what happens if that takes longer than expected.

How Passive Investing In A Madison County Apartment Syndication Works

In an apartment syndication, Skyline acts as the general partner. We find the Madison County property, negotiate the purchase, arrange the loan and oversee management and any renovation. Limited partners put in capital and own a share of the entity that owns the building. They don't sign on the loan or deal with tenants and repairs.

Syndications are long-term and illiquid, and capital usually stays committed for several years. Results are never certain. Most offerings are limited to accredited investors, and the rules depend on whether a deal uses Rule 506(b) or Rule 506(c). See investing with Skyline Capital for how we work with limited partners.

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